# dfk10_arduino_demo

**Repository Path**: genvex/dfk10_arduino_demo

## Basic Information

- **Project Name**: dfk10_arduino_demo
- **Description**: No description available
- **Primary Language**: C++
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-02-03
- **Last Updated**: 2025-02-09

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

编译出错，注意查看lib里的部分文件夹是空的，需要从lib.zip里找回。 

Arduino_DriveBus、ESP32_JPEG ，下载后这两个库是空的。 

配套使用教程说明
https://mc.dfrobot.com.cn/thread-323838-1-1.html

欢迎留言讨论。

```c

#ifndef _MAIN_H_
#define _MAIN_H_
#include "Lcd_handler.hpp"
#include <LovyanGFX.hpp>
#include "lvgl.h"
#include "examples/lv_examples.h"
#include "demos/lv_demos.h"
// #include "tiger_lcd_bsp.hpp"
// static SSD1306 oled;

#include "XL95x5_Driver.h"
// 在ESP32上以自定义设置使用LovyanGFX时的设置示例

// XL95x5对配置进行初始化
XL95x5 ExpandPin(XL95x5_IIC_ADDRESS, XL95x5_SDA, XL95x5_SCL);
static K10_Lcd tft;
static void lvgl_begin(void);
static void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area,
                          lv_color_t *color_p);
lv_disp_t *Lcd_disp; /*Descriptor of a display driver*/

static void lvgl_begin(void) {
#define LVGL_HOR_RES (240)
#define LVGL_VER_RES (320)
    // #define DISP_BUF_SIZE (LVGL_HOR_RES * 100)

    ExpandPin.begin();
    ExpandPin.read_all_reg();  // Read all registers
    ExpandPin.pinMode(XL95x5_GPIO_NUM_0,OUTPUT);
    ExpandPin.digitalWrite(XL95x5_GPIO_NUM_0, LOW);
    delay(10);
    ExpandPin.digitalWrite(XL95x5_GPIO_NUM_0, HIGH);
    // ExpandPin.digitalWrite(XL95x5_GPIO_NUM_15, HIGH);

    tft.init();
    tft.initDMA();
    
    tft.setRotation(0);
    lv_init();

    static lv_disp_draw_buf_t draw_buf;
    size_t DISP_BUF_SIZE =
        sizeof(lv_color_t) * (LVGL_HOR_RES * LVGL_VER_RES);  // best operation.
    static lv_color_t *buf1 = (lv_color_t *)heap_caps_malloc(
        DISP_BUF_SIZE * sizeof(lv_color_t), MALLOC_CAP_SPIRAM);
    static lv_color_t *buf2 = (lv_color_t *)heap_caps_malloc(
        DISP_BUF_SIZE * sizeof(lv_color_t), MALLOC_CAP_SPIRAM);

    lv_disp_draw_buf_init(&draw_buf, buf1, buf2,
                          DISP_BUF_SIZE); /*Initialize the display buffer*/

    /*-----------------------------------
     * Register the display in LVGL
     *----------------------------------*/

    static lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/
    lv_disp_drv_init(&disp_drv);   /*Basic initialization*/

    /*Set up the functions to access to your display*/
    /*Set the resolution of the display*/
    disp_drv.hor_res = LVGL_HOR_RES;
    disp_drv.ver_res = LVGL_VER_RES;
    /*Used to copy the buffer's content to the display*/
    disp_drv.flush_cb = my_disp_flush;
    /*Set a display buffer*/
    disp_drv.draw_buf     = &draw_buf;
    disp_drv.full_refresh = 1;
    /*Finally register the driver*/
    lv_disp_drv_register(&disp_drv);
}

static void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area,
                          lv_color_t *color_p) {
    int w = (area->x2 - area->x1 + 1);
    int h = (area->y2 - area->y1 + 1);
    /* Start new TFT transaction */
    tft.startWrite();
    /* set the working window */
    tft.setAddrWindow(area->x1, area->y1, w, h);
    // tft.writePixelsDMA((lgfx::swap565_t* )&color_p->full, w * h);
    tft.writePixelsDMA((lgfx::rgb565_t* )&color_p->full, w * h);
    /* terminate TFT transaction */
    tft.endWrite();
    /* tell lvgl that flushing is done */
    lv_disp_flush_ready(disp);
}



#endif